Centrifugal liquid-separator.



I E. A. FORSBERG. GBNTRIFUGAL LIQUID SBPARATQR. APPLICATION FILED SEPT.20, 1910.

993,048. Patentd May 23, 1911.

2 SHEETS-SHEET 1.

WITNESSES:

IIIYEIITUR WW 50f WM I noun-m E. A. FORSBERG.

GENTRIFUGAL LIQUID SBPARATOR. 'APPLIOATION FILED 82M. 20, 1910.

Patented May 23, 1911.

WITNESSES UNITED STATES PATENT OFFICE.

ERIK AUGUST FORSIBERG, OF STOCKHOLM, SWEDEN, ASSIG'NOR TO.AKTIEIBOLAGE'I SEPARATOR, OF STOCKHOLM, SWEDEN.

CENTZRIFUG AL LIQUID-SEPARATOR.

Specification of Letters Patent.

Patented May 23, 1911.

Application filed September 20, 1910. Serial No. 582,861.

To all whom it may concern:

Be it known that I, ERIK AUoUs'r Fons- BERG, chief engineer, a citizenof Sweden, and a subject of the King of Sweden, residmg at Stockholm, inthe Kingdom of Sweden, have invented certain new and useful Improvementsin Centrifugal Liquid- Separators; and I do hereby declare the followinto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same, reference being bad to the accompanying drawings, and toletters or figures of reference marked thereon, which form a part ofthis specification.

My invention relates to improvements in centrifugal liquid separatorsspecifically in cream separators, and it particularly relates to adevice for the inlet of the fluid to be separated and for the outlet ofthe separated constituents from the bowl of such centrifugal separators,in which the bowl is suspended on the top of the driving shaft, whichpenetrates to a relatively high point in the central part of the bowl.Owing to.this fact certain difficulties as to .the inlet of theseparating fluid and the outlet of the separated constituents arise.

In order to have sufiicient strength the driving shaft must have arelatively large diameter. It must further be surrounded by a centralsleeve connected with the bowl, which must also be of sufiicientthickness. There is thus formed in the center of the bowl a conical orcylindrical tap rising from thebottom of same. In the constructionshitherto known the liquid distributing 'organ envelops this central tap,and as this organ also must'have acertaln solidity, the result is thatabody of relatively great extension in radial direction occuples thecentral part of the bowl. And further, as the cream outlet must belocated at such a distance from the centerline of the bowl that thecream cylinder formed during rotation does not touch at the central partof the bowl--causing anobstruction of the cream flowthe result is thatthe cream outlet,

and consequently also the skim-milk outlet, must be located at arelatively great distance from the center of the bowl. This means,

however, a loss of power in the driving of the bowl.

My invention has for its object the construction of a milk distributinorgan, by which the inconveniences mentioned above may be removed, and Iattain this b limiting the dimensions in radial direction of the centralparts of the bowl to what is strictly necessary with respect to thefixed part surrounding the drivlng shaft, or, in other words, Iconstruct a liquid distributing organ, which does not itself take up anyroom In radial direction, whereby the upward flow of the cream would bechecked.

.Another object of'my invention is that the milk distributing organ maybe simple in manufacturing and easy to clean.

My invention is illustrated on the annexed drawing, on which Figure 1 isa vertical section of the rotating bowl showing the fluid distributingdevice partly sectioned and partly in elevation. Fig. 2 is a plansection taken on the broken line AB in Fig. 2. Fig. 3 is a independentdistributing organ.

In the embodiment shown in Figs. 1 and 2 a is the body of the bowl,supporting the central sleeve 6 surrounding the top of the drivingshaft. The sleeve 6 is in its turn surrounded by the fluid distributingorgan, which is composed of a number (in the drawing three) of verticalgutters c, independent of the central sleeve, said gutters facing inwardand abutting with their side walls against the central sleeve. Thegutters are at their lower extremity connected with a bottom part 11, inwhich channels 6 are provided, forming continuations of the gutters.These channels issue into the series of distributing holes 9 existing1in the separating disks. At the up er en the gutters are closed and heldtoget er by means of, preferably, sector-formed connecting pieces h,

which preferably are made in one with the gutters '0. These connectingpieces may be either entire, in which case the upward directed flow ofthe lighter fluid is conducted past the connections through channels isformed in the gutters (Figs. 1 and 2), or the connections themselves maybe arranged to leave free passage for the said fluid flow.

According to the modification shown in Fig. 5 there are'left spacesbetween the connections and the central feed pipe, leaving free passagefor the lighter fluid.

In the embodiment shown in 6 the connections touching to the centralfeed pipe are provided with apertures, and in the embodiment illustratedin Fig. 7 passages are forwarded both in the gutters and in theconnecting pieces, forming one issue.

Should it prove necessary, one or more connecting pieces may be arrangedat suitable places along the length of the gutters, these connectingpieces being also arranged so as to leave free passage for the risinglighter fluid.

The distance from the axis of the bowl to the outer circumference of theconnecting pieces may either be equal to the distance from the axis tothe outer wall of the gutters, or less. In the latter case, theseparating disks are guided between the opposite walls of the gutters.In the feed pipe forming a continuation of the sleeve 1) there arevertical apertures 2' corresponding to the 1nwardly open gutters. i Theoperation of the device is as follows: The fluid to be separated isintroduced in the central feed pipe, flows through the apertures z' andthe gutters 0 down to'the channels e and is further distributed in theliner through the series of holes in the separating disks. As ill beseen, the space between the gutters is free in radial direction up tothe outer wall of the central sleeve 6 and no .room is taken up by themilk distributing organ. The, outflow openings for the separatedconstituents may consequently beloca'ted as near to the center as thecon-' struction in other respects permits. since the liquid distributingorgan is independently adapted to the central sleeve, the same may beeasily removed and efiectively cleaned.

In the modified construction shown in Figs. 3 and 4. the milk is in theknown manner distributed to the separating chamber by means of splitwings 0'. Said wings correspond thus to the gutters'in the embodimentbefore described and are, like these, connected below by means of acentral supporting body d, in which, however, no distributing channelsare provided, and above by means of a ring h. The splits'communicatewith the apertures i in the feed pipe. At the one side of each wingthere are made vertical channels 7: ending over and under Andtheconnecting pieces h for conducting the lighterv vfluid past theseconnecting pieces. Instead of such channels there may be holes or slitsin the connecting pieces themselves.

What I claim is 1. In centrifugal liquid separators, in combination, adriving shaft, a bowl on the top of said shaft, a sleeve rising from thebottom of the bowl and surrounding the upper part of the shaft, acentral feed pipe forming prolongation of said sleeve, a liner in theseparating chamber of the bowl, and a liquid distributing deviceinterposed between the liner and the'sleeve independent of both andconsisting of upright gutters, in communication with the feed pipe abovethe sleeve and with the lower portion of the separating chamber toconduct the fluid to be separated from the feed pipe to the separatingchamber.

2; In centrifugal liquid separators, in combination, a driving shaft, abowl on the top of said shaft, a sleeve rising from the bottom of thebowl and surrounding the uptween the liner and the sleeve independentofboth, and consisting of a plurality of upright, gutters communicatingwith the interior of the feed pipe above the sleeve and with the lowerportion of the separating chamber to conduct the fluid to be separatedfrom the feed pipe to the separating chamber, and means to conduct theseparated lighter constituent to the outlet.

3.. In centrifugal liquid separators, in combination, a driving shaft, abowl .on the top of the said shaft, a sleeve rising from thebottom ofthe bowl and surrounding the upper part of the shaft, a central feedpipe forming prolongation of said sleeve, a liner in the separatingchamber of the bowl, a liquid distributing device interposed between theliner and the sleeve, independent of both, and consisting of a pluralityof outwardly closed upright gutters communicat ing with the interior ofthe feed pipe above the sleeve and with the lower portion of theseparating chamber, to conduct the fluid to be separated from the feedpipe to the separating chamber, and means to conduct the separatedlighter constituent to the outlet.

4. In centrifugal liquid separators, in combination, a driving shaft, abowl on the top of said shaft, a sleeve rising from the bottom of'thebowl and surrounding the upper part of the shaft, acentral feed pipeforming prolongation of the said sleeve, a liner in the separatingchamber of the bowl, consisting of superposed conical disks providedwith series of holes, a liquid distributing device interposed betweenthe liner and the sleeve, independent of both and consisting of aplurality of outwardly closed upright gutters communicating with theinterior of the central feed pipe above the sleeve and abutting beneaththe series of holes in the separating disks, and means to conduct theseparated lighter fluid to the outlet.

5. In centrifugal liquid separators, in combination, a driving shaft, abowlon the top of said shaft, a sleeve rising from the bottom of thebowl and surroundm the upper part of the shaft, a central feed pipeforming prolongation of the said sleeve, a liner in the sqparatingchamber of the bowl, consisting o superposed conical disks rovided withseries of holes, a liquid distributing device interposed between theliner and the sleeve, independent of both-and consistin of a pluralityof outwardl closed uprigit gutters communicating with the inter1or ofthe com tral feed pipe and abutting beneath the series ofholes in theseparating disks, connecting pieces between the said utters, and

means to conduct the rising lighter constituent from the under to theupper side of these connecting pieces.

6. In centrifugal liquid. separators, in combination, a driving shaft,abowlon the top of said-shaft, a sleeve rising from the bottom of thebowl and surroundin the upper part of the shaft, a central eed pipeforming prolongation of the said sleeve, a

liner in the separating chamber of the bowl, consistin of superposedconical disks rovided wit series of holes, a liquid distri uting deviceinterposed between the liner and the sleeve, independent of both andconsisting of a plurality of outwardly closed upright gutterscommunicating with the inte# rior of the central feed pipe and abuttingbeneath the series of holes in the separating disks, connecting piecesbetween the said gutters and passages in the body'of the gutters issuingbeneath and above the conduct ing pieces to conduct the rising flowofthe separated lighter constituent past the said connecting pieces.

7. In centrifugal liquid separators, in combination, a driving shaft, abowl on the top of said shaft, a sleeve rising from the bottom of thebowl and surrounding the upper part of the shaft, a central feed pipeforming prolongation of the said sleeve, a liner in the separatingchamber of the bowl, consisting of superposed conical disks providedwith series of holes, a liquid distributing' device, interposed betweenthe liner and the sleeve, independent of both and consisting of aplurality of outwardly closed upright gutters communicating with theinte rior of the central feed pipe and abutting beneath the series ofholes in the separating disks, connecting pieces between the said ow ofthe,

ing device interposed between the liner and.

the sleeve, independent of both and consisting of a plurality ofoutwardly closed up right gutters communicating with the interiorof thecentral feed pipe and abutting beneath the series of holes in theseparating disks, connecting pieces between the said gutters andpassages in the body of said gutters and in the sald connecting pieces,form: ing one issue, to conduct the upright di rected flow of theseparated lighter constituent.

9. In centrifugal liquid separators, in combination, a driving shaft, abowl on the top of said shaft, a sleeve rising from the bottom of thebowl and surrounding the upper part of the shaft, a central feed pipeforming prolongation of the said sleeve, a liner in the separatingchamber of the bowl consisting of superposed conical disks, a. liquiddistributing device interposed between the liner and the sleeve,independent of both, and consisting of a. plurality of inwardly andoutwardly open upright gutters communicating with the interior of thefeed pipe above the sleeve and with lower portion of the separatingchamber and means to conduct the separated lighter fluid to the outlet.

10. In centrifugal liquid separators, in combination, a driving shaft, abowl on the top of said shaft, a sleeve risin -from the bottom of thebowl and surroun in the upper part of the shaft, a central eed pipeforming prolongation of the said sleeve, a linerin the separatingchamber of the bowl, consisting of superposed conical disks, 0. liquiddistributing device interposed between the liner and the sleeve,independent of both, and consisting of a plurality of inwardly andoutwardly open upright gutters -;communicating with the interior of thefeed pipe and with the separating chamber of the bowl, connecting piecesbetween said gutters and means to conduct the rising flow of the lighterconstituent from the under to the upper side of these connecting pieces.

11. In centrifugal li uid separators, in combination, a driving s aft, abowl on the top of said shaft, a sleeve rising from the bottom of thebowl and surrounding the upper part of the shaft, a central feed pipeforming prolongation of the said sleeve, a liner in the separatingchamber of the bowl,

consisting of superposed conical disks, a

liquid distributing device interposed between the liner and the sleeve,independent of both, and consisting of a plurality of inwardly andoutwardly open upright gutters communicating with the interior of thefeed pipe and with the separating chamber of the bowl, connecting piecesbetween said gutters, and passages in the body of the guttersissuingbeneath and above the connecting pieces.

12. In centrifugal liquid separators, in combination, a driving shaft, abowl on the top of said shaft, a sleeve rising from. the bottom of thebowl and surrounding the upper" part of the shaft, a central feed pipeforming prolongation of the said sleeve, a liner in the separatingchamberof the bowl, consisting of superposed conical disks, a liquiddistributing device interposed between the liner and the sleeve,independent of both, and consisting of a plurality of inwardly andoutwardly open upright gutters communicating-with the interior of thefeed pipe and with the separating chamber gutters, and passages in saidconnecting 1 pieces.

13. In centrifugal liquid separators, in

combination, a driving shaft, a bowl on the top of said shaft, a sleeverising from the bottom of the bowl and'surrounding the upper part of theshaft, a central feedpipe formmg prolongation of the said sleeve, aliner in the separating chamber of the bowl, consisting of superposedconical disks, a liquid distributing device interposed between the linerand the sleeve, independent of both, and consisting of a'plurality ofinwardly and outwardly open upright gutters communicating with theinterior of the feed pipe and with the separating chamber of the bowl,connecting pieces between said gutters, and passages in the body of saidgutters and in the said connecting pieces, forming one issue.

In testimony, that I-claim the foregoing as my invention, I have signedmy name in presence of two subscribing witnesses.

ERIK AUGUST FORSBERG.

WVitnesses:

HARRY ALBIHN, L. BERGMAN.

